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Finding the Fourth Proportional to 18,860.58, 26,028.87 and 10,904.82

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Solution

The fourth proportional to 18,860.58, 26,028.87 and 10,904.82 is: 15,049.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.58 : 26,028.87 = 10,904.82 : x
  2. Step 2: Convert to fraction form
    18,860.58/26,028.87 = 10,904.82/x
  3. Step 3: Cross multiply
    18,860.58x = 26,028.87 × 10,904.82
  4. Step 4: Simplify right side
    18,860.58x = 283,840,142.15
  5. Step 5: Solve for x
    x = 283,840,142.15/18,860.58
  6. Step 6: Final answer
    x = 15,049.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.